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The geographic center of the 48 contiguous states is located approximately four Miles (6 km) west of Lebanon , Kansas , at 98°35'W 39°50'N.


50 STATES




48 CONTIGUOUS STATES





UNITED STATES POINTS ON THE NORTH AMERICAN CONTINENT















UNITED STATES INCLUDING TERRITORIES AND INSULAR AREAS


, and yellow line showing where the IDL is.]]



United States including territories and insular areas by Longitude




United States including territories and insular areas by International Date Line




FOOTNOTES


1 Location is a Census-designated Place .

2 Adak Station is the westernmost major town with a population of 316 (as of 2000 ). Attu Station, Alaska is farther west, but it only has a population of 20 (as of 2000 ).

3 The ownership of Machias Seal Island is disputed between the U.S. and Canada. If one considers this to be U.S. Territory, then it is the easternmost point in the 48 contiguous states, coordinates:

4 The easternmost/westernmost points of the U.S. throughout the world are disputed.
What is most eastern or western depends on one's point of view about what east and west really mean.

By cartographical convention, the Prime Meridian running through Greenwich, England is the ''least eastern'' and ''least western'' place in the world. It is defined as 0 degrees longitude. The 180th Meridian , on the opposite side of the globe represents the absolute limit of how far east or west one can travel, from a cartographical perspective. Anything exactly on the 180th meridian is neither east nor west; but take a single step to either side and one is at 179+ degrees east or 179+ degrees west, the highest achievable numbers. By this mode of reckoning, the most eastern and western spots in the US are both in the Aleutian Islands, Alaska.

If one takes the view that the easternmost place is where the day first begins, and the westernmost is where the day last ends, then the International Date Line is the defining limit for what is most eastern or western. In a new year, the earliest US sunrise takes place on Wake Island. Less than an hour earlier, the sun also rose over Attu Island, Alaska but for December 31.

On the other hand, if one defines what is most eastern and most western by which direction he or she must travel to reach a given point over the shortest distance, then Udall Point, Virgin Islands, and Point Udall, Guam, are the easternmost and westernmost points, respectively. While the world is round, and any point can be reached by traveling either east or west, it is always more direct to head east to reach Udall Point, VI, when traveling from any other spot in the U.S. Likewise, there is not a single point in the United States from which heading east is a shorter route to Point Udall, Guam, than heading west would be, even accounting for circumpolar routes. This holds true because all U.S. territory is spread across less than 180 degrees of longitude.


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